# STC SA00466AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Springer Aerospace LTD, United States
- Description: Installation of Redline Hydraulic Brake Conversion Kit No. 11-2174. (S/N's 66-2234 thru 66-2833, 75-3048 thru 75-3057, 75-3418 thru 75-3507, 76-3508 thru 76-3957, 81-4008 thru 81-4132)
- Applied: May 2, 1994
- Status date: March 18, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-2-575](https://openairdocs.org/tcds/A-2-575)
- Certificate PDF: https://openairdocs.org/files/sha256/fb/3c/fb3c59570a28c28fc90cfdf393fcfd012b4769f7327dbba729698705d2fdd830
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6C8E7820FB36AC9C86256E8200628CE7.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA00466AT

## ADs that name it (0)

None.

## Approved models (8)

- Rockwell International Corporation AT-6 (SNJ-2) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6A (SNJ-3) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6B ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6C (SNJ-4) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6D (SNJ-5) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6F (SNJ-6) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation BC-1A ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation T-6G ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Number SA00466AT

This certificate issued to Springer Aerospace LTD.

9353 S.E. 72nd Avenue Ocala, FL 34472

Part * of the Civil Air Regulations.

Original Product--Type Certificate Number : *See attached eligibility list number R-12 Make : for approved airplane models and Model : applicable airworthiness regulations

Description of Type Design Change: Replacement of Hayes drum brakes with REDLINE HYDRAULIC BRAKE CONVERSION KIT No. 11-2174 in accordance with REDLINE Master Drawing List No. R-12, Rev.

Original, dated April 22, 1994, or later FAA approved revision.

Limitations and Conditions: This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application : May 2, 1994

Date of issuance : May 4, 1994

March 18, 2004

Date amended : June 20, 1994

( Signature) Melvin D. Taylor Manager, Atlanta Aircraft Certification Office

(Title)

SA00466AT

* FAA Approved Master Eligibility List (MEL) No. R-12, Installation of REDLINE Hydraulic Brake Kit No. 11-2174.

Original Type Airplane Make Airplane Model Certification Number Certification Basis

North American 8C-1A A-2-575 CAR 4a AT-6 (SNJ-2) AT-6A (SNJ-3) AT-6B AT-6C (SNJ-4) AT-6D (SNJ-5) AT-6F (SNJ-6) T-6G SNJ-7

North American Harvard II A-2-575 CAR 4a S/N’s:

66-2234 thru 66-2833 75-3048 thru 75-3057 75-3418 thru 75-3507 76-3508 thru 76-3957 81-4008 thru 81-4132

Date Manager, Atlanta Aircraft Certification Office

## Every issue (1)

- March 18, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/fb/3c/fb3c59570a28c28fc90cfdf393fcfd012b4769f7327dbba729698705d2fdd830)

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